. >>> a bay area marine back home from the front lines of afghanistan. his story straight ahead. [ male announcer ] you don't make the world's best chicken by pressing a button. it takes a cook. we're kfc and we've got a certified cook in every restaurant freshly making the colonel's original recipe, today and every day. 11 herbs and spices, hand-breaded, hands down the world's best chicken. today is a kfc day. so bring home a real meal -- 10 pieces of that famous chicken, 3 large sides and 6 biscuits. enough real food to feed a family of four or more, just 20 bucks. today tastes so good. >>> hospital patients have enough to worry about without wondering if their young doctor got sleep. after decades of concern there are some new rules for some but not all. here is more. >> reporter: julia, this all starts today. i read through this 19 page directive. major pains a-- it could impact hospitals, medical residents ap patients. california pacific medical center, she's a medical year resident. >> sometimes you get a little bit of sleep, there's definitely nig